OH6 n= 188 OH11 n= 7 TB4 n= 7 TB5 n= 2 GLAD Spring A n= 4 GLAD Spring B n= 4 Min Median Max Min Median Max Min Median Max Min Median Max Min Median Max Min Median Max Alkalinity - Total (g/m3 as CaCO3) 8.3 15.8 26 12.5 16.7 27 6.4 8 19.7 3 5.7 6.15 6.9 4.1 4.75 5.9 Aluminium-Dissolved(g/m3) 0.005 0.01 0.017 0.032 0.07 0.077 0.066 0.017 0.0295 0.051 0.013 0.03 0.044 Antimony-Dissolved(g/m3) 0.0002 0.0006 0.0034 0.0002 0.0011 0.0067 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 Arsenic-Dissolved(g/m3) 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Barium-Dissolved(g/m3) 0.03 0.033 0.034 0.037 0.041 0.048 0.019 0.024 0.031 0.02 0.029 0.03 Bicarbonate (g/m3 at 25°C) 10.1 19.2 32 15.2 20 33 7.8 9.8 24 3.7 6.9 7.5 8.4 5 5.8 7.2 Boron-Dissolved(g/m3) 0.012 0.013 0.047 0.007 0.0075 0.009 0.017 0.006 0.009 0.009 0.005 0.009 0.009 Cadmium-Dissolved(g/m3) 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00006 0.000085 0.00011 0.00005 0.00005 0.00005 0.00005 0.000055 0.00006 Calcium-Dissolved(g/m3) 3.3 48 169 33 68 270 2.2 2.8 3.2 4.6 5.3 6 5.4 6.5 7.9 4.7 5.05 5.8 Carbonate (g/m3 at 25°C) 1 1 1 1 1 1 Chloride(g/m3) 11 16 27 12 16 27 7 12 16 8 10.7 12 14 10.2 12.5 14 Chromium-Dissolved(g/m3) 0.0005 0.0007 0.0009 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 Chromium-Hexavalent(g/m3) 0.001 0.01 0.01 0.001 0.01 0.001 0.001 Chromium-Total(g/m3) 0.00053 0.00053 0.00053 0.00053 0.0024 Cobalt-Dissolved(g/m3) 0.0002 0.0009 0.0026 0.0003 0.0006 0.0046 0.0002 0.0002 0.0015 0.0005 0.0005 0.0005 0.0003 0.00045 0.0006 0.0002 0.0002 0.0004 Copper-Dissolved(g/m3) 0.0005 0.0005 0.0102 0.0005 0.0014 0.0062 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 Cyanide-Total(g/m3) 0.001 0.002 0.003 0.001 0.001 0.001 Electrical Conductivity (EC) (mS/m) 7.5 36.9 107.6 31.3 50.7 150 7.4 8 9.4 9.5 10.3 11.1 10.3 11.85 13.5 10.1 10.25 11 Fluoride (g/m3) 0.05 0.05 0.11 0.05 0.05 0.05 Hardness-Total(g/m3 as CaCO3) 13.9 138 510 101 300.5 730 11.6 14.3 15.6 19.3 22.15 25 30 31 32 19.9 21.95 24 Iron-Dissolved(g/m3) 0.03 0.08 0.27 0.04 0.06 0.11 0.21 0.3 2.4 0.02 0.02 0.02 0.02 0.02 0.05 0.02 0.06 0.2 Iron-Total(g/m3) 0.38 0.09 3 Lead-Dissolved(g/m3) 0.0001 0.0001 0.00028 0.0001 0.0001 0.00013 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 Magnesium-Dissolved(g/m3) 1.2 4.4 21 4.3 5.3 15.8 1.46 1.56 1.89 1.89 2.195 2.5 1.87 2.4 3 1.7 1.89 2.3 Manganese-Dissolved(g/m3) 0.0114 0.01925 0.113 0.0101 0.0154 0.022 0.025 0.03 0.44 0.0141 0.01445 0.0148 0.0139 0.01535 0.025 0.0136 0.01485 0.042 Mercury-Dissolved(g/m3) 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 Molybdenum-Dissolved(g/m3) 0.0002 0.0005 0.0064 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 Nickel-Dissolved(g/m3) 0.0005 0.0005 0.0005 0.0005 0.0005 0.0007 0.0005 0.0005 0.0005 0.0005 0.00065 0.0008 0.0008 0.0011 0.0014 0.0005 0.0005 0.0007 Nitrate-N(g/m3) 0.12 0.81 1.41 0.45 1.145 2.2 0.049 0.146 0.32 1.14 0.78 0.39 Nitrate-N + Nitrite-N(g/m3) 0.12 0.98 1.42 0.32 1.06 2.6 0.051 0.32 0.65 1.14 0.59 0.9 1.65 0.39 0.87 1.27 Nitrite-N(g/m3) 0.054 0.1 0.33 0.015 0.089 0.42 0.002 0.006 0.1 0.002 0.1 0.1 Nitrogen-Total Ammoniacal(g/m3) 0.01 0.121 0.69 0.038 0.13 0.26 0.01 0.016 0.022 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.011 0.019 pH(pH units) 6.5 7.1 7.8 7 7.2 7.6 6 6.6 6.7 5.6 6.05 6.5 5.5 5.8 6 5.6 5.95 6.3 Phosphorus-Total (g/m3) 0.004 0.01 0.44 0.012 0.007 0.004 0.018 Potassium-Dissolved(g/m3) 2.5 3.6 9.4 2.7 3.7 12 1.08 1.56 2.3 2.1 1.35 1.785 1.97 1.15 1.445 4.3 Reactive Phosphorus-Dissolved(g/m3) 0.004 0.004 0.012 0.004 0.004 0.004 0.004 0.004 0.004 0.004 Selenium-Dissolved(g/m3) 0.0002 0.001 0.0048 0.001 0.001 0.0013 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Silica-Reactive(g/m3 as SiO2) 16.3 25 31 16.1 14.2 13 Silver-Dissolved(g/m3) 0.0001 0.0001 0.00015 0.0001 0.0001 0.00014 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 Sodium-Dissolved(g/m3) 8.4 17.7 50 13 20 62 7.9 8.5 9.3 8.3 8.8 9.35 10.3 8.9 9.45 9.5 Strontium-Dissolved(g/m3) 0.193 0.22 0.5 0.0163 0.0174 0.021 0.022 0.023 0.03 0.02 0.021 0.021 Sulphate(g/m3) 16 210 520 93 192 720 0.9 6 10 18 18 20.85 30 14.8 16 27 Thallium-Dissolved(g/m3) 0.00005 0.00006 0.00008 0.00005 0.00005 0.00005 0.00006 0.00007 0.00009 0.00005 0.00005 0.00009 Tin-Dissolved(g/m3) 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 Total Kjeldahl Nitrogen (TKN)(g/m3) 0.1 0.415 1.43 0.16 0.28 0.58 0.13 0.195 0.2 0.2 0.1 0.185 0.22 0.15 0.46 0.82 Total Suspended Solids(g/m3) 3 3 230 3 3 3 3 3 5 3 3 15 40 28 50 109 Uranium-Dissolved(g/m3) 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00004 Weak Acid Dissociable (WAD) Cyanide(g/m3 0.001 0.002 0.007 0.002 0.002 0.005 0.001 0.001 0.003 0.001 0.001 0.001 0.002 0.001 0.001 0.002 Zinc-Dissolved(g/m3) 0.001 0.0023 0.055 0.001 0.0018 0.0038 0.0026 0.004 0.0105 0.0145 0.0147 0.0149 0.0021 0.00315 0.004 0.0023 0.003 0.0037 Parameter Notes: Blank cells indicate parameter not tested, median only indicates only one sample for specific parameter Sample number indicates max sample size for individual parameters - Not all parameters tested during each sample round 21/01/2021 Table E.5 Summary of Gladstone surface water quality 2017-2019 Water Quality Sampling
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